A central Ohio judge says there's not enough evidence to convict a driver who struck and killed a drunken bicycle rider.

24-year-old Davenna Ferguson had been charged with vehicular manslaughter. Ferguson testified that she didn't see the rider, 33-year-old Ernesto Galvez-Jacobo, before striking him on a dark Columbus road in May 2012. Galvez-Jacobo's blood alcohol level registered more than three times the legal limit for driving a car or riding a bike. A city prosecutor had argued that Ferguson was responsible because she failed to maintain a clear distance.